{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Although large - dose amiodarone is highly effective in the long - term treatment of VT or VF refractory to conventional antiarrhythmic drugs , it causes significant toxicity in approximately 50 % of patients ."}
{"Chemical": ["amiodarone"], "Disease": ["VT", "VF", "toxicity"]}